Miscellaneous & Anything That Needs to be placed later

Question 1

Hypoxia vs. Hypoxemia

Answer 1

Hypoxia: Low oxygen delivery to tissues
Hypoxemia: Low partial pressure of oxygen in the blood

Question 2

Path of oxygen from atmosphere to hemoglobin

Answer 2

FiO2 –> PAO2 –> PaO2 –> SaO2

• FiO2: Fraction of Inspired Oxygen
• PAO2: Partial pressure of Alveolar oxygen
• PaO2: Partial pressure of arterial oxygen
• SaO2: Arterial oxygen saturation

Question 3

Example of diffusion defect

Answer 3

Interstitial Pulmonary Fibrosis

Question 4

SaO2 level and PaO2 level in anemia

Answer 4

Both are NORMAL

*SaO2 and PaO2 are unaffected by the content of hemoglobin

Question 5

SaO2 level and PaO2 level in CO poisoning

Answer 5

PaO2 = Normal
SaO2 = decreased

Question 6

Treatment for CO poisoning

Answer 6

100% O2

Question 7

First sign of CO poisoning + other symptoms

Answer 7

1. Headache

2. Cherry Red Appearance of Skin

Question 8

Fe2+ oxidized to Fe3+, which leads to iron in heme that cannot bind to O2; can be caused by drugs or seen in newborns

Answer 8

Methemoglobinemia

Question 9

SaO2 level and PaO2 level in Methemoglobinemia

Answer 9

PaO2 = Normal
SaO2 = decreased

Question 10

Signs of Methemoglobinemia

Answer 10

Cyanosis

Chocolate-colored blood

Question 11

Drugs that cause Methemoglobinemia

Answer 11

Sulfa and nitrate drugs

Question 12

Treatment for methemoglobinemia

Answer 12

IV Methylene blue (reduce Fe+3 to Fe+2)